K. Nishio, Suguru Tagawa, Tatsuro Fukushima, H. Masuda
{"title":"Highly Ordered Nanoporous Si for Negative Electrode of Rechargeable Lithium-Ion Battery","authors":"K. Nishio, Suguru Tagawa, Tatsuro Fukushima, H. Masuda","doi":"10.1149/2.002204ESL","DOIUrl":"https://doi.org/10.1149/2.002204ESL","url":null,"abstract":"","PeriodicalId":11627,"journal":{"name":"Electrochemical and Solid State Letters","volume":"469 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79905988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Erin L. Redmond, Brian P. Setzler, P. Juhás, S. Billinge, T. Fuller
An in-situ method to measure changes in catalyst particle size at the cathode of a proton exchange membrane fuel cell is demonstrated. Synchrotron X-rays, 58 keV, were used to measure the pair distribution function on an operating fuel cell and observe the growth of catalyst particles under accelerated degradation conditions. The stability of Pt/C and PtCo/C with different initial particle sizes was monitored over 3000 potential cycles. The increase in particle size was fit to a linear trend as a function of cycles. The most stable electrocatalyst was found to be the alloyed PtCo with the larger initial particle size.
{"title":"In-Situ Monitoring of Particle Growth at PEMFC Cathode under Accelerated Cycling Conditions","authors":"Erin L. Redmond, Brian P. Setzler, P. Juhás, S. Billinge, T. Fuller","doi":"10.1149/2.004206ESL","DOIUrl":"https://doi.org/10.1149/2.004206ESL","url":null,"abstract":"An in-situ method to measure changes in catalyst particle size at the cathode of a proton exchange membrane fuel cell is demonstrated. Synchrotron X-rays, 58 keV, were used to measure the pair distribution function on an operating fuel cell and observe the growth of catalyst particles under accelerated degradation conditions. The stability of Pt/C and PtCo/C with different initial particle sizes was monitored over 3000 potential cycles. The increase in particle size was fit to a linear trend as a function of cycles. The most stable electrocatalyst was found to be the alloyed PtCo with the larger initial particle size.","PeriodicalId":11627,"journal":{"name":"Electrochemical and Solid State Letters","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82273377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ionic Liquid-Based Composite Membrane for PEMFCs Operating under Low Relative Humidity Conditions","authors":"Liang Wang, S. Advani, A. Prasad","doi":"10.1149/2.009204ESL","DOIUrl":"https://doi.org/10.1149/2.009204ESL","url":null,"abstract":"","PeriodicalId":11627,"journal":{"name":"Electrochemical and Solid State Letters","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73889393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We present our observations made during the early stages of graphene growth employing an ethylene-based CVD method capable of synthesizing copper-foil-catalyzed monolayer graphene at temperatures as low as 800 ◦ C. Spectroscopic monitoring of surface catalysis showed that graphene crystals evolve from densely distributed nucleation points that interconnect to form large crystals covering the entire surface. Secondary nucleation was observed inside the primary graphene crystals. An effective activation energy for copper-catalyzed ethylene-based graphene synthesis was determined to be 2.46 eV, a value that suggests surface dehydrogenation of ethylene or lattice integration of graphene as the possible rate-determining step in the heterogeneous catalysis.
{"title":"Observations of Early Stage Graphene Growth on Copper","authors":"K. Celebi, M. Cole, K. Teo, H. Park","doi":"10.1149/2.005201ESL","DOIUrl":"https://doi.org/10.1149/2.005201ESL","url":null,"abstract":"We present our observations made during the early stages of graphene growth employing an ethylene-based CVD method capable of synthesizing copper-foil-catalyzed monolayer graphene at temperatures as low as 800 ◦ C. Spectroscopic monitoring of surface catalysis showed that graphene crystals evolve from densely distributed nucleation points that interconnect to form large crystals covering the entire surface. Secondary nucleation was observed inside the primary graphene crystals. An effective activation energy for copper-catalyzed ethylene-based graphene synthesis was determined to be 2.46 eV, a value that suggests surface dehydrogenation of ethylene or lattice integration of graphene as the possible rate-determining step in the heterogeneous catalysis.","PeriodicalId":11627,"journal":{"name":"Electrochemical and Solid State Letters","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74355275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. Choi, I. Choi, J. Hur, Dae-Seung Kang, Ho-Sup Shin, S. Jeong
{"title":"In Situ Electrochemical Measurement of O2− Concentration in Molten Li2O/LiCl during Uranium Oxide Reduction Process","authors":"E. Choi, I. Choi, J. Hur, Dae-Seung Kang, Ho-Sup Shin, S. Jeong","doi":"10.1149/2.016203ESL","DOIUrl":"https://doi.org/10.1149/2.016203ESL","url":null,"abstract":"","PeriodicalId":11627,"journal":{"name":"Electrochemical and Solid State Letters","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74687895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Viscous Layer Formed in the Anodic Electrolytic Etching of Reactive Metals in Ionic Liquid","authors":"Bajin Xu, J. Chen, G. Ling","doi":"10.1149/2.006201ESL","DOIUrl":"https://doi.org/10.1149/2.006201ESL","url":null,"abstract":"","PeriodicalId":11627,"journal":{"name":"Electrochemical and Solid State Letters","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78838962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. N. Victoria, J. Jebaraj, I. Suni, S. Ramanathan
Potassium peroxymonosulfate (Oxone) was investigated as an oxidizing agent in silica based slurries for chemical mechanical planarization of Ru. Upon addition of oxone, the Ru removal rate increases significantly in the pH range of 1‐6. The slurry stability is poor at pH 3 and higher. At pH 2, oxone enhances the Ru removal rate even in the absence of abrasive, indicating that a soft film is formed on the Ru surface. Ru dissolution experiments show that the static etch rate is low. The Ru removal rate variation with pressure and velocity does not follow the Preston equation.
{"title":"Chemical Mechanical Planarization of Ruthenium with Oxone as Oxidizer","authors":"S. N. Victoria, J. Jebaraj, I. Suni, S. Ramanathan","doi":"10.1149/2.005203ESL","DOIUrl":"https://doi.org/10.1149/2.005203ESL","url":null,"abstract":"Potassium peroxymonosulfate (Oxone) was investigated as an oxidizing agent in silica based slurries for chemical mechanical planarization of Ru. Upon addition of oxone, the Ru removal rate increases significantly in the pH range of 1‐6. The slurry stability is poor at pH 3 and higher. At pH 2, oxone enhances the Ru removal rate even in the absence of abrasive, indicating that a soft film is formed on the Ru surface. Ru dissolution experiments show that the static etch rate is low. The Ru removal rate variation with pressure and velocity does not follow the Preston equation.","PeriodicalId":11627,"journal":{"name":"Electrochemical and Solid State Letters","volume":"100 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80321645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Stefano Meini, M. Piana, N. Tsiouvaras, A. Garsuch, H. Gasteiger
{"title":"The Effect of Water on the Discharge Capacity of a Non-Catalyzed Carbon Cathode for Li-O2 Batteries","authors":"Stefano Meini, M. Piana, N. Tsiouvaras, A. Garsuch, H. Gasteiger","doi":"10.1149/2.005204ESL","DOIUrl":"https://doi.org/10.1149/2.005204ESL","url":null,"abstract":"","PeriodicalId":11627,"journal":{"name":"Electrochemical and Solid State Letters","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80861272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Publisher's Note: Stress Contributions to Solution Thermodynamics in Li-Si Alloys [Electrochem. Solid-State Lett., 15, A9 (2012)]","authors":"B. Sheldon, S. Soni, Xingcheng Xiao, Y. Qi","doi":"10.1149/2.030204ESL","DOIUrl":"https://doi.org/10.1149/2.030204ESL","url":null,"abstract":"","PeriodicalId":11627,"journal":{"name":"Electrochemical and Solid State Letters","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75546051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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